I really like the idea of a time lapse showing "recovery" of a crypt or maybe of a deficiency. I love to see more detail on prorogating or how how plants reproduce as well. The general start to finish of a few tanks with a variety of lighting (Finnex, Fluval, other), different water conditions, substrates all having the same plants, but how the outcomes can look so different (still good, just different). I think it would go a long way to demonstrate, just because "John" in Texas can grow pogo doesn't mean "Sally" in New York will have the same outcomes. It would help some new budding aquatic plant keepers confidence.